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Prep Time: 30 minutes
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Cook Time: 45-55 minutes
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Chill Time: Minimum 4 hours (essential for clean slicing!)
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Total Time: 5 hours 15 minutes (includes chilling)
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Intensity: Moderate. This recipe involves multiple components but uses simple techniques. The most demanding part is patiently waiting for them to chill!
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Servings: 16 generous bars
Ingredients
This recipe is broken down into three simple components.
For the Shortbread Crust:
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1 ½ cups (190g) all-purpose flour
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½ cup (100g) granulated sugar
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¼ teaspoon salt
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½ cup (1 stick / 113g) cold unsalted butter, cut into small cubes
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1 large egg yolk
For the Creamy Cheesecake Filling:
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16 oz (452g) full-fat cream cheese, softened to room temperature
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½ cup (100g) granulated sugar
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2 large eggs, at room temperature
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¼ cup (60g) sour cream, at room temperature
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2 tablespoons all-purpose flour
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1 tablespoon fresh lemon zest (from about 1 large lemon)
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2 tablespoons fresh lemon juice
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1 teaspoon vanilla extract
For the Blueberry Swirl:
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1 ½ cups (about 200g) fresh or frozen blueberries (if using frozen, do not thaw)
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1 tablespoon granulated sugar
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2 teaspoons fresh lemon juice
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2 teaspoons cornstarch
Instructions
Let’s break this down step-by-step. Follow along, and you’ll be a pro.
Part 1: Prepare the Blueberry Swirl
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In a small saucepan, combine the blueberries, 1 tablespoon of sugar, and 2 teaspoons of lemon juice.
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Place over medium heat and cook, stirring occasionally, for about 5-8 minutes, until the blueberries have burst and released their juices.
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In a small bowl, whisk the cornstarch with 1 tablespoon of cold water to form a slurry.
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Pour the slurry into the blueberry mixture and stir continuously. Cook for another 1-2 minutes, until the mixture has thickened significantly. It should coat the back of a spoon.
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Remove from heat and set aside to cool completely while you prepare the crust and filling.
Part 2: Make the Shortbread Crust
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Preheat your oven to 350°F (175°C). Line a 9×9-inch square baking pan with parchment paper, leaving some overhang on two opposite sides. This will be your “sling” to lift the bars out later.
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In a medium bowl, whisk together the 1 ½ cups of flour, ½ cup of sugar, and salt.
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Add the cold, cubed butter. Using a pastry blender or your fingertips, cut the butter into the flour mixture until it resembles coarse meal with some pea-sized butter bits remaining.
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Add the egg yolk and stir with a fork until the dough clumps together. It will be crumbly but should hold together when pressed.
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Pour the crust mixture into your prepared pan and press it firmly and evenly into the bottom. Using the flat bottom of a measuring cup or glass helps get a nice, even layer.
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Bake the crust for 18-20 minutes, or until it’s lightly golden around the edges. Remove from the oven and set aside. Keep the oven on.
Part 3: Create the Cheesecake Filling
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While the crust is baking, make the filling. In a large mixing bowl, beat the softened cream cheese with an electric hand mixer (or in a stand mixer with the paddle attachment) until it’s completely smooth and free of lumps.
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Add the ½ cup of sugar and beat until combined and creamy, scraping down the sides of the bowl as needed.
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Add the eggs one at a time, beating on low speed just until each is incorporated. Do not overmix.
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Add the sour cream, 2 tablespoons of flour, lemon zest, lemon juice, and vanilla extract. Mix on low speed until the batter is smooth and uniform. Scrape the bowl one last time.
Part 4: Assemble and Swirl
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Pour the cheesecake filling over the warm pre-baked crust. Gently spread it into an even layer with a spatula.
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Take your cooled blueberry mixture. If it’s very thick, give it a quick stir. Drop spoonfuls of the blueberry sauce randomly over the top of the cheesecake filling.
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Take a knife or a toothpick and gently swirl it through the filling and blueberry mixture to create a marbled effect. Be careful not to drag the knife all the way to the crust—just swirl through the top layer.
Part 5: Bake and Cool
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Place the pan in the oven and bake for 45-55 minutes. The edges will look set, but the center will still have a slight jiggle when you gently shake the pan. This is the sign of a perfect, creamy cheesecake.
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Turn the oven off and crack the oven door open. Let the cheesecake bars cool in the oven for 1 hour. This gradual cooling helps prevent cracks.
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After an hour, remove the pan from the oven and place it on a wire rack to cool completely to room temperature.
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Once cool, cover the pan with plastic wrap and refrigerate for at least 4 hours, but preferably overnight. This chilling time is non-negotiable for clean, beautiful slices.
Part 6: Slice and Serve
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Once thoroughly chilled and firm, use the parchment paper sling to lift the entire block of cheesecake bars out of the pan and onto a cutting board.
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Use a long, sharp knife to slice the bars. For the cleanest cuts, wipe the knife clean with a damp paper towel between each slice.
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Serve cold and enjoy!
Storage and Make-Ahead Tips
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Storing: Keep leftover bars in an airtight container in the refrigerator for up to 5 days.
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Freezing: These bars freeze beautifully! Wrap individual slices or the whole unsliced block tightly in plastic wrap, then in a layer of aluminum foil. Freeze for up to 3 months. Thaw overnight in the refrigerator before serving.
Nutrition Information
(Nutrition information is an estimate and will vary based on the exact ingredients used.)
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Serving Size: 1 bar
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Calories: 278
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Total Fat: 16g
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Saturated Fat: 9g
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Cholesterol: 78mg
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Sodium: 167mg
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Total Carbohydrates: 29g
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Dietary Fiber: 1g
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Total Sugars: 18g
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Protein: 5g
Enjoy your beautiful and delicious Blueberry Cheesecake Bars! We’d love to see how they turn out—share a photo in the comments below!